Health Violations Found

Water Quality in 57101 — Sioux Falls, SD

EPA data for SIOUX FALLS

Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026

5
Water Systems
216,462
People Served
1
Health Violations (5yr)
Surface water
Water Source
No data
Lead Level

Your Water System

ZIP code 57101 in Sioux Falls, South Dakota is served by SIOUX FALLS (EPA ID: SD4600294). This system provides water to approximately 216,462 people from surface water sources.

There are 5 community water systems serving this area.

Lead & Copper in Your Water

No Lead & Copper Rule sampling data available for systems serving this ZIP code.

Violation Summary

1 health-based violation recorded in the past 5 years. 3 violations remain unresolved.

Recent Violations

DateContaminantTypeStatus
July 7, 2025Chlorine residualHealth-basedUnresolved
April 1, 2024Revised Total Coliform RuleMonitoringResolved
April 1, 2024Revised Total Coliform RuleMonitoringResolved
April 1, 2024Revised Total Coliform RuleMonitoringUnresolved
April 1, 2024Revised Total Coliform RuleMonitoringUnresolved

Contaminants Detected

The following contaminants have been flagged in EPA records for water systems serving this ZIP code:

ContaminantCategoryViolationsHealth-Based
Revised Total Coliform RuleMicrobiological4No
Chlorine residualDisinfectant1Yes

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Water Systems Serving This Area

System NameEPA IDPopulationSource
SIOUX FALLSSD4600294216,462Surface water
LINCOLN COUNTY RURAL WATER SYSTEMSD46003045,965Groundwater
PINE LAKE HILLSSD4600624320Groundwater
VALLEY VIEW ESTATESSD4600300230Groundwater
SKYLINE HEIGHTSSD4600297110Surface water

What You Can Do

  1. Request your water system’s Consumer Confidence Report (CCR) — Your utility is required to publish this annually
  2. Consider a home water test — Independent testing can reveal issues in your specific plumbing
  3. Install a certified water filter — NSF-certified filters can address specific contaminants
  4. Contact your water provider — Ask about current treatment and any ongoing remediation

Need help with water testing or filtration?

Call to get connected with a local professional in your area.

Call (855) 384-4856

This is a free service. You will be connected with an independent service provider.

Other Water Quality Reports in South Dakota

Nearby Water Quality Reports

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for SIOUX FALLS (SD4600294) on EPA.gov.

Frequently Asked Questions

Is the tap water in 57101 safe to drink?

Sioux Falls’s water system has recorded 1 health-based violation in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.

Where does 57101’s water come from?

The primary water source for this area is surface water. SIOUX FALLS serves approximately 216,462 people.

How can I get my water tested?

Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.

Does 57101 have lead in the water?

No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 57101. If you are concerned about lead, contact your water utility or have your tap water independently tested.

What is the radon risk in 57101?

Radon zone data is not available for ZIP code 57101. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.

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